Simulation of Droplet Impingement on Solid Surface by the Level Set

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Simulation of Droplet Impingement on Solid Surface by the
Level Set Method and Phase Field Method
Abstract
The simulation of multi-phase flow with moving interfaces is important in
a wide range of applications, such as ink-jet printing, metal depositions,
spray cooling, and biomedical engineering applications. Level Set and
Phase Field methods are two well-known techniques for tracking the
moving interfaces. Each model has its own strength and weakness. This
paper compares the two surface tracking models in the simulation of
droplet impingement process.
The simulations are carried out by
employing the Level Set and Phase Field models in COMSOL. The
dynamic impingement processes will be presented for a glycerin droplet
impacting on two surfaces with different surface wettability - a wetting
glass surface and on a non-wetting wax surface. The simulated spreading
factor and apex height will be compared with experimental results for the
two surface tracking models.
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